Diagnosis & Repair
NOTE:
Using Toyota hand-held tester or scan tool, read FREEZE FRAME data. Freeze frame data records engine conditions when malfunction is detected.
Check valve timing while checking for loose, stretched or jumped teeth on timing chain. See appropriate article in ENGINES. If no problem exist, replace ECM. ECM is located behind passenger's side kick panel, just below instrument panel. See Figure. If problem exists, repair or replace components as necessary.